Abstract:
A method for protecting a metal surface from galling and corrosion includes a step of providing a protective dry film on the metal surface. The film includes a solid lubricant and a conducting polymer, the conducting polymer having lubricant properties and being capable of binding the solid lubricant to the metal surface. Threaded metal joint surfaces coated with the film are capable of resisting galling under high pressure and high torque conditions, even after several fastening and unfastening operations or over a long period of time. Protection from corrosion is also provided by the film. The method and film are economical in that only a single layer of protective compound need be applied in order to provide metal surfaces with both lubrication and protection against corrosion, and problems such as removal or leakage, which are associated with protective compounds that use oils, are avoided. Additionally, the dry film is advantageous because it does not contain heavy metals that are harmful to the environment.
Abstract:
A process for producing a metal wire rod for plastic working, characterized in that it comprises the steps of cleaning the surface of a wire rod of a metal such as steel, stainless steel or aluminum for 20 seconds or less, by the use of at least one cleaning method selected from the group consisting of shot blasting, sand blasting, bending, anodic pickling and cathodic pickling, contacting the resulting wire rod, for 5 seconds or less, with an aqueous treatment liquid for forming a lubricating coating film comprising at least one inorganic salt selected from the group consisting of a phosphate, a sulfate, a borate, a silicate, a molybdate and a tungstate, and at least one lubricating agent selected from the group consisting of a metal soap, a wax, polytetrafluoroethylene, molyblenum disulfide and a graphite, and drying the rod immediately after the cleaning, and the steps are carried out continuously in an in−line system, to form a lubricating coating film on the surface of the wire rod in an amount of 0.5 to 20 g/m 2 . The process allows the production of a metal material for plastic working having excellent lubricating characteristics in a short time.
Abstract translation:一种用于塑料加工的金属线材的制造方法,其特征在于,其包括以下步骤:至少使用钢,不锈钢或铝等金属线材的表面清洁20秒以下 选自喷丸,喷砂,弯曲,阳极酸洗和阴极酸洗的一种清洁方法,使所得到的线材接触5秒或更少的水溶液,以形成润滑涂膜,所述润滑涂膜包括至少一个 选自磷酸盐,硫酸盐,硼酸盐,硅酸盐,钼酸盐和钨酸盐的至少一种无机盐,以及选自由金属皂,蜡,聚四氟乙烯,二硫化钼组成的组中的至少一种润滑剂,以及 石墨,并在清洁后立即干燥棒,并且在直线系统中连续进行步骤,以在线的表面上形成润滑涂膜 棒数量为0.5至20g / m 2。 该方法允许在短时间内生产具有优异润滑特性的用于塑性加工的金属材料。
Abstract:
A solid lubricant and composition useful for lubricating the flanges of locomotive wheels, railcar wheels, rail track and in applications where it is desirable to reduce friction when metal contacts metal. The solid lubricant having from about twenty-five percent to about seventy percent by volume of a polymeric carrier, about five to seventy-five percent by volume of organic and inorganic extreme pressure additives, about zero to twenty percent by volume synthetic extreme pressure anti-wear liquid oil, and about zero to one percent by volume optical brightener.
Abstract:
An aqueous lubricant for use in plastic working of a metallic material which comprises (A) a water soluble inorganic salt, (B) a lubricating agent selected from molybdenum disulfide and graphite and (C) a wax, wherein the components are dissolved or dispersed in water, and wherein a solid concentration ratio (weight ratio) (B)/(A) is 1.0 to 5.0 and (C)/(A) is 0.1 to 1.0; and a method of lubricant film processing of a metallic material, characterized in that a lubricant film is formed by applying the aqueous lubricant in a dried weight of 0.5 to 40 g/m on a clarified metal material, followed by drying. The water soluble inorganic salt(A) is preferably selected from the group consisting of a sulfate, a silicate, a borate, a molybdate and a tungstate. The wax (C) is preferably a natural wax or a synthetic wax which is dispersed in water and has a melting point of 70 to 150 DEG . The aqueous lubricant can be used for imparting excellent bubricity with ease to the surface of a metal having no chemical film formed thereon.
Abstract translation:一种用于金属材料的塑性加工的水性润滑剂,其包含(A)水溶性无机盐,(B)选自二硫化钼和石墨的润滑剂和(C)蜡,其中所述组分溶解或分散在 水,固体成分浓度比(重量比)(B)/(A)为1.0〜5.0,(C)/(A)为0.1〜1.0; 以及金属材料的润滑剂膜处理方法,其特征在于,通过在澄清的金属材料上施加0.5〜40g / m 2的干重量的水性润滑剂,然后干燥而形成润滑剂膜。 水溶性无机盐(A)优选选自硫酸盐,硅酸盐,硼酸盐,钼酸盐和钨酸盐。 蜡(C)优选为分散在水中,熔点为70〜150℃的天然蜡或合成蜡。 水性润滑剂可以用于在其上形成有化学膜的金属的表面上容易地赋予优异的浸渍性。
Abstract:
The invention relates to a lubricant which can be used as a mandrel lubricant with a content of 75 to 90 wt. % of graphite and contains 1 to 10 wt. % of a phosphate. Said lubricant can also contain 1 to 4 wt % alkali silicate, 1 to 10 wt. % bentonite, 0.5 to 1 wt. % silico-phosphate and common solid lubricants. Said lubricant is preferably used as an aqueous suspension with a solid content of 20 to 40 wt. %.
Abstract:
According to the method of the invention, first a paste is produced from a plastics dispersion and fillers in order to form the plastics sliding layer. This paste is free from organic solvents and is applied to a sintered porous metal layer. The resultant multi-layer material is then sintered. Since organic solvents are not used, the risks to health and the risk of fire are considerably reduced. Furthermore, the composite materials produced according to the invention have exceptional resistance to cavitation. In addition to conventional fields of application relative to lubrication-free articles, such as bearings, these composite materials can therefore also be used in gear pumps and shock absorbers.
Abstract:
The present invention relates to environmentally advantageous, anti-corrosion lubricating paste compositions comprising a base and a carrier, the carrier being present in a major proportion with respect to the base. Further, in one aspect of the invention, the base comprises wax and graphite, and the carrier comprises petrolatum or mineral oil.
Abstract:
A method to make a graphite block of any desired size and with over 99% carbon purity and high density is provided. The graphite block is obtained by mixing graphite flakes of any size with graphene oxide sheets and subjecting the mixture to elevated temperature and pressure. With this method large graphite blocks can be obtained economically and fast. The graphite blocks of this invention have superlubricity characters.
Abstract:
Cet élément est réalisé à partir d'un enroulement d'un tissu de faible épaisseur comprise entre 20 µm et 150 µm et mélangé avec une résine comprenant des charges, ledit tissu se présentant sous forme de bandes de largueur comprise entre 5 mm et 200 mm, lesdites bandes étant croisées selon plusieurs couches.